Planetary reversible clutch



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afifiayae I April 3, 1928.

F. E. DONALD ET AL- PLANETARY REVERSIBLE CLUTCH Filed April 17. 1926 April 3, 1928.

F. E. DONALD ET AL PLANETARY REVERSIBLE CLUTCH Filed April 17. 192 5 Sheets-Sheet 2 Patented Apr. 3, 1928. i

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FLOYD E. DONALD AND CHARLES P. BOYCE, OF CORSICANA, TEXAS.

PLANETARY REVERSIBLE CLUTCH.

Application filed. April 17, 1926. Serial No. 102,703.

This invention relates to a planetary reyersible clutch for use in connection with internal combustion engines especially of the type which operate one way only as used in the oil field.

It is aimed to provide a novel, eflicient, durable, compact and comparatively inexpensive construction possessing the advantages, details, and features of construction as hereinafter set forth in part and illustrated in the accompanying drawings.

In said drawings Figure 1 is an end elevation of the device;

Figure 2 is an opposite end elevation, parts being broken away to disclose interior gearing, and

Figure 3 is a central longitudinal sectional view taken on' the line 33 of Figure 1.

Referring specifically to the drawings, 10 designates a driven shaft which is journaled in suitable bearings 10. loose on said shaft and capable of turning relatively thereto. Said drum 11 has a main wall 12 from which a laterally extending pulley rim 13 extends, so that a brake'band 12 may engage the same. Extending from the opposite side of wall or plate 12 is an annular flange '14. If desired, band 12 may be engaged with flange it instead of rim, 13.

Keyed to the shaft 10 as at 15 is a gear wheel 16 which meshes with a series ofpinions 17, journaled on bolts or removable stub shafts 18, fastened to the said wall 12.

A planetary gear wheel is shown at 19, having its teeth provided at 20 on a flange 21. The pinions 17, mesh with the teeth 20. By means of bolts or the like 22, gear wheel 19 is connected to an attaching mem her or bushing as at 23iwhich serves as the driver for the aforesaid driven shaft 10. The latter may transmit its power to any suitable work as by a belt trained over a pulley 10 onsuch shaft. A cover plate 24:, annular in form, may be provided to engage the outer side of the flange 14: and engage portions of the hub of the gear. Wheel 19 and the bushing 23.

Keyed to the shaft 10 as at 27 is a bracket 28, having a sleeve 29 and a suitable plurality of generally radiating arms 30.

A drum 11 is V A sleeve 31, slidable along the collar 'or sleeve 29, is operable by a fork or the equivalent of any approved type applicable to the. groove 32. Sleeve 31 has longitudinally extending lugs 33. Radiating rela: tively to said lugs 33'are rods 34 which have sections 35 adjustably connected together by insane nuts 36 so that they may be lengthened or shortened. These rods 34 have one section 35 pivoted as at 37 to the lugs 33 and their other sections 35 pivoted as by means of bolts 38 between lugs 39 of brake shoes 10.- Said brake shoes 40 are pivoted as by means of bolts ll to the arms 30.

- As will be understood, the brake shoes 40 are normally out of engagement with the inner surfaces of the flange 13 and hence as the shaft 10 is driven, the drum 11 is not positively connected therewith. However, in

order to positively connect the drum with the shaft 10 and thereby drive an auxiliary device from shaft 10 or its pulley 10",

sleeve 31 is shifted so that the normally inclined rods 34 will tend to straighten in a plane truly at a right angle to the axis of.-

shaft 10, thereby moving the free ends of the brake shoes 10 into frictional and braking contact with the innerisurface of the band 13, such brake shoes moving from the pivot 41. As a result, the parts are connected together and move unitarily through the power derived from driver 23 and the coupled engine, and theconstruction forms a planetary reverse so as to coact with such a driver, an engine shaft or the equivalent moving in but one direction.

Changes maybe resorted to provided they fall within the spirit and scope of the invention.

We claim as our invention:

A device of the class described compris-' ing a shaft, a bracket rigid with said shaft having outwardly extending arms, a gear eoj tending laterally on opposite sidesthereof,

said shoes being engageable with the first ing outwardly of and across the said planeflange gear Wheels pivoted to said main tary gear wheel and an attaching member wall and in mesh With the first mentioned extending from the planetary gear Wheel. 10 gear Wheel, a planetary gear Wheel having In testimony whereof We afiix our signaa laterally extending Wall provided With tures. V teeth in mesh with those of the second men- FLOYD E. DONALD.

tioned gear Wheel, a second flange extend- 7 CHARLES P. BOYCE. 

